In particularly snowy winters, pitched roof structures act as hidden sources of danger, because if solid precipitations collect on the roof surface, they can fall down at any second. In order to exclude such a probability, snow retainers are mounted on the roof. The use of such devices is necessary if the finish is made of a smooth profile sheet. Thanks to the presence of snow retainers, snow remains on the roof surface, and when warming, it flows down the gutters, turning into melt water.
Snow retainer selection before installation
Before you install snow retainers on the roof from corrugated board, you need to understand the main varieties of these structures. Snow barriers can have different sizes, have a certain reliability and base material.
For roofs from profiled sheets, systems are used that are most often made from corners, gratings and pipes. The second option is the simplest but most effective. The design is a universal system of brackets mounted on the roof. With the help of such barriers, it is possible to solve the problem of retaining insignificant pieces of ice, because of which a large mass of snow usually accumulates on the roof. That is why these structures are installed on the roof with an impressive bearing capacity.
Such parts are made of galvanized steel, which is then painted with a moisture-resistant paint. Therefore, the snow retention system can be selected taking into account the color of the roof. If we are talking about sizes, then they can vary depending on the model, while the ability to retain snow will depend on the size. The smallest snow retention can be limited to a height of 5 cm, while the largest have a height of up to 20 cm.
Features of tubular snow retention systems
Before installing snow retainers on the roof from corrugated board, it is necessary to understand the main varieties of such systems, among them tubular snow retainers. They are able to hold a large amount of snow, letting it pass a little, which reduces the load on the surface of the material. Such snow retention can be installed on any roofs, the angle of which does not exceed 60 °. If the slope is higher, then the tubular systems are not installed, since they are ineffective in operation.
Similar designs are also made of galvanized steel, subsequently they are painted. As a result, products gain durability and are not subject to corrosion. Such snow barriers are supplemented by two tubes, the diameter of which can vary from 15 to 30 mm, while the length can vary from 1 to 3 m. There are mounting brackets and elements with plates for fixing on the roof surface in the system.
When to choose corner snow retention
Before you install snow retainers on the roof from corrugated board, you should pay attention to the corner variety of such systems. It is worth recognizing that such structures are the most unsuccessful, because they completely impede the passage of solid precipitation.
Therefore, if the house is installed in a region with a significant number of them, then such devices are not used. This is because their height is usually not more than 6 cm. In addition, such snow barriers are made of sheet metal, the thickness of which is comparable with the thickness of the profile sheet. For this reason, these systems are not highly durable to retain a large amount of snow. Products are recommended for use in regions where snow cover is quite low and the roof slope does not exceed 30 °. Moreover, from time to time it will have to be cleaned of accumulated dirt and snow.
Installation
The installation of snow retainers on the roof of corrugated board may differ in technology when using a certain type of design. Thus, the installation of corner products is the simplest, and work can be done using self-tapping screws with a rubber washer. Fixation is made in the wave of profiled sheet, which is most effective.
For the installation of corner snow retention, you can do without work to strengthen the lattice, but the fastener should be denser cut into the wood. If this rule is not taken into account, the design will have low strength. Corner snow retainers are installed in such a way that the fasteners are located through one wave.
Features of the installation of lattice and tubular systems
Installation of tubular snow retainers on the roof of corrugated board, as well as lattice systems, is carried out using the support brackets. They must be fixed, as well as corner products, using self-tapping screws. These types of snow retainers are installed around the perimeter of the building, they must be located along the slope. Systems may be arranged in one or more rows.
Preparatory work
Before starting installation work, you need to decide what type of snow retainers will be used, as well as how many rows you plan to install. It is important to take into account the intensity of precipitation in a particular region. It is necessary to take into account the angle of inclination of the roof, as well as the presence of fences on its surface. You can independently carry out the installation of snow retainers on the roof. The corrugated surface will assume the presence of these systems, which should be located above the roof fence, if any. Whereas in the absence of such a possibility, designs can be combined.
At the next stage, you can start marking, for this, the perimeter is determined, and also places for the location of the stops are marked. The step from the last bracket to the edge of the pipe should not be more than 300 mm. The maximum distance between the brackets is 1100 mm. As a rule, snow retainers are 600 mm away from the edge of the eaves overhang, parallel to it. If another barrier is necessary, then it should be located no closer than 3 meters from the neighboring one.
Tool preparation
The installation of snow retainers on the roof of the corrugated board, the instructions for which are mentioned in the article, suggest the need for certain tools among them:
- drill;
- marker;
- yardstick;
- set of drills;
- self-tapping screws.
Choosing fasteners, you must prefer one that has rubber gaskets, they usually come with the system. After completion of the preparatory work, you can start the installation, as an example below we will consider the technology for installing a tubular system, which is the most efficient and reliable.
Installation instructions
Do-it-yourself installation of snow retainers on the roof can be done. For installation work, in accordance with the marking, it is necessary to install support brackets using a punch and self-tapping screws. Pipes are installed in the holes of the bracket, and to achieve the desired length, they can be joined together. For this, the manufacturer provides one-way crimping.
The resulting joint should be strengthened by bolting. The same actions should be carried out on each side of the building, moving along the perimeter. At the final stage, the master should check the bolt connection for strength.
The nuances of the work
The installation of snow retainers on the roof involves the use of a rivet instead of a screwdriver, if the latter was not available. When it comes to working with snow retention models, the length of which starts at 70 cm, then two screws will not be enough. In this case, it is necessary to punch additional holes in the center. When acquiring a catcher, you should consider it in order to understand whether the manufacturer has designated places on them where it is necessary to work with screws or rivets. In the first case, we are talking about short snow retention. If there is no designation, then 3 cm should be retreated from the edge and a hole punched.
Conclusion
The installation scheme of snow retainers on the roof of corrugated board was described above. If you want to understand in more detail what technology and in what places of the roof to install the stops, then you need to consider the photos that are presented in the article.